Telephone switching apparatus.



G. SWOPB.

TELEPHONE SWITCHING APPARATUS. AP/PLIGATION rxLED APB. 14, 1911.

1,086,869. Patented Feb. 10, 1914 e if.

Gera/'d wape.

UNITED STATES PATENT oEEiCE.

GERARD SWOPE, 0F NEW BRUNSWICK, NEW JERSEY, ASSIGNOR TO WESTERN ELECTRICCOMPANY, 0F NEW YORK, N. Y., A CORPORATION OF ILLINOIS.

TELEPHONE SWITOHING APPARATUS.

To aline/tom it may concern.

Be it known that I, GERARD Swors, citizen of the United States, residinat New Brunswick, in the county of Mid esex and State of New Jerse haveinvented a certain new and usefu Improvement in Tele-l .ihone SwitchingApparatus, of which the ollowing is a full, clear, concise, and exactdescription.

This invention relateslto telephone apparatus and more particularly tohouse telephones. and inexpensive terminal apparatus for te ephonestations.

In accordance with the invention there is provided a 's ringjack at eachof several tenninal stations and a plu switch, the splringjacks formingthe terminals of telep one lines and the plug the terminal of a portabletelephone, together with means, preferably in the form of a hook, fixedupon the plug for removably supporting the telephone when not in use.

More particularl the invention provides a sprin ack, toget er with apush button, for cal ing, mounted on the rear side of a flat plate whichmay be installed flush with the wall where a telephone is to be used'the telephone being connected to the plu by a flexible eord andcomprisin the or inary hand combination set consistin of a transmitterand receiver, is thus a apted to be taken from station tostationasdesired for use. The plu may be inserted in any sprin lack an ixed tothe plug so as to be readily accessible for use when desired at thatstation. Preferably the plu is rovided with two terminal rods mounigedsise by side in an insulating block, one of the terminals being oflargersizethan the other, and the springjack openings being ofcorresponding sizes so that the circuit connections will necessarily bethe same whenever and wherever the lug is inserted.

Tlie invention will be more fully understood by reference to theaccompanying drawing, wherein- I Figure 1 is a side rspective of a lutogather with a han combination teep one set supported thereon. Fig. 2is a plan view `of tl.; plug with the bod portion in section. Fig. b isa front view o a plate containing aspringjack and push button. Fig. 4 isa Bpeoioatten of Letters .tatant` application aiea'sprn i4, mi.

Its object is to provide a sim le the telephone hung on the hoo PatentedFeb. l0, H11-t.

serial no. ssaess.

cross sectional view on the line 4 4 of lfig. Brand Fig. 5 is a rearview of the plate.

In the drawing, the hand Combination tele hone set 1 is provided at itsupper end wit a rin 2 and extending from its` lower end a tlexi le cord3, the set 'being supported by placin the ring over the end of a. hook 4mounte upon the plug 5. This plugeonirises besides the hook 4 and bodyportieri two contact terminal rods` 7, 8, of ditl'ereut diameters. Anextension S) of the hook fi passes through the block and is threaded atits end to engage a nut 10 which holds the hook firmly in place in theblock. 'lhe terminal rods 7 8, extend through the block from end to endas shown, and are provided with holes 11 for the terminal clips 12 ofthe cord. The connections are made secure by set screws 18.

Referring to Figs. B, 4 and 5, there is shown a mounting late 14provided with a push button 16 an sprin ]ack sockets 16, 17, thesesockets being o suitable sizes to permit entrance of the contact rods 7,8 of the plug. On the rear edge of the plate 14 is an insulating block18. Each socket: is provided with a sleeve 19 threaded into the lock 18and concentric with the openings in the plate 14, said openings being alit-tlc larger than the sockets in order that the terminal rods 7 and 8of the plug will not make contact with the plate 14 when inserted.Mounted upon the block 14 are two plates or spring clips 20, 21 held inplace y bolts 22, 22, which also serve ns binding posts for the lineconnections. The two plates 20, 21 are formed at one end into a pair ofcontact points 23, 24, adapted to be closed by the push button 15, andatA the other end into a pair of contact springs 25 which engige therods 7, 8 when the plug is inserted. he ends of these rods are groovedas shown so as to lock the plug in place by en agement with the ends ofthe springs 25. n practising the invention, a house or other buildin mabe equipped with as many termina Btn ions as desired und ut. eachStatiOn there will be installed one of the push button and springjaclclates 14, The expense of installin a simp e terminal ap paratus of thiskin is inconsiderable and the installation may be made with the idea offirst. merely using the push buttons at the stations in connection withan annuntiti push button, vprovides a simple portable telephone at anyfuture time, the

Vpush button being then used to signal the central telephone station.

,I claim 1. In a telephone subst-ation av Wall plate, a pair of contactsprings mounted thereon forming the terminals of a telephone line, apush button cooperating with said contactsprings to close the line forsignaling purposes,- and a plug engaging said Contact springs to connecta telephone instrument across the line for talkingpurposes.v 2. Ina.telephone substation a wall plate,

Qopiel of this patent may be obtained for tive cents each, by addressingthe an insulating plate mounted thereon, both of said plates beingprovided with apertures passing therethrough, apair of contact springsmounted on said insulating v plate, apush button passing through one ofand being adapted'pto bring said apertures contact sprlngs into one endof each of said engagement with the other, saidsprings coperat-ing withother of said apertures'to form spring jacks.

In witness whereof-I hereunto subscribe my. name this 12th day-'ofApril, A. '1). 1911.

GER'AfnD sWoPE. Witnesses: A

IRVING MACDONALD,

MonGANfWAsHBURN, J r.

Commiuionet'of Patenti,

Washington', D. C."

the other ends of 25

